1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* mkdir.c
Create a directory. We must go through a subsidiary program to
force our real uid to be the uucp owner before invoking the setuid
/bin/mkdir program. */
#include "uucp.h"
#include "sysdep.h"
#include <errno.h>
int
mkdir (zdir, imode)
const char *zdir;
int imode;
{
struct stat s;
const char *azargs[3];
int aidescs[3];
pid_t ipid;
/* Make sure the directory does not exist, since we will otherwise
get the wrong errno value. */
if (stat (zdir, &s) == 0)
{
errno = EEXIST;
return -1;
}
/* /bin/mkdir will create the directory with mode 777, so we set our
umask to get the mode we want. */
(void) umask ((~ imode) & (S_IRWXU | S_IRWXG | S_IRWXO));
azargs[0] = UUDIR_PROGRAM;
azargs[1] = zdir;
azargs[2] = NULL;
aidescs[0] = SPAWN_NULL;
aidescs[1] = SPAWN_NULL;
aidescs[2] = SPAWN_NULL;
ipid = ixsspawn (azargs, aidescs, TRUE, FALSE, (const char *) NULL,
TRUE, FALSE, (const char *) NULL,
(const char *) NULL, (const char *) NULL);
(void) umask (0);
if (ipid < 0)
return -1;
if (ixswait ((unsigned long) ipid, (const char *) NULL) != 0)
{
/* Make up an errno value. */
errno = EACCES;
return -1;
}
return 0;
}
|
